How To Repair A Polyethylene Fuel Tank Utube

How to Repair an Aluminum Fuel Tank in a Boat

past Chris Stevenson

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Aluminum marine gas tanks do not concluding forever since they endure corrosion and exposure to the environs like any other boat component. However, aluminum has its advantages over other materials used for gas storage on marine vessels, chiefly that it combats corrosion ameliorate and weighs less than other heavier metals, including some fiberglass tanks. Fuel leakage from an aluminum tank requires an firsthand response, since liquid gas and fumes plant a danger to onboard passengers. Finding and repairing a leak in an aluminum tank demand not be hard and only requires some practical steps and basic tools.

Step 1

Trailer the boat to a convenient work location and park the tow vehicle with the emergency restriction prepare. Remove the lanyard fundamental from the ignition. Disconnect the negative battery cable with a socket. Shut off the master fuel feed valve at the tank and at the engine. Utilise a screwdriver to loosen the gas intake hose clench and pull the hose from the gas tank neck.

Footstep 2

Disconnect the fuel discharge line that goes to the fuel pump with a screwdriver. If equipped with a vent hose, unclasp the hose terminate or loosen the clamp with a screwdriver. Disconnect the tank sensor wire, if so equipped.

Step three

Place a siphon hose in the gas intake inlet and pump out the gas into a certified container. Remove as much gas as possible. Use a socket and wrench to remove the strap or bracket bolts that hold your gas tank to the stringers or bottom deck. Be careful not to tear any condom mounts or insulation under the tank.

Step 4

Use an assistant to help you lot remove the tank from the boat and set it on finish over a suitable drainage area. Bleed whatever remaining fuel from the tank into a certified container.

Step 5

Utilise a loftier pressure water hose to flush the inside of the gas tank, removing all gas traces. Use a compressor air nozzle to force-blast all moisture from the tank. Set the tank on end, assuasive information technology to drain and air dry completely. Place the tank in a position to work on the damaged expanse.

Step half dozen

Chalk an outline of the crack or corroded expanse, allowing at least a 3-inch overlap. For a minor crack or pigsty, use a drill and conical fleck to grind a bevel in the crack, or open the hole to produce new metal on the sides of the hole.

Step seven

Employ 400-grit sandpaper to sand over the crack area or hole, overlapping the surface area on all sides by 3 inches. For a corrosion spot, sand over the entire corroded surface area downwards to bare metal and overlap on all side for 3 inches. Don gloves, a particle mask and goggles. Wipe the expanse downwards several times with acetone and a rag. Wipe dry with a rag.

Footstep 8

Mix the contents of the marine epoxy weld according to directions. Mix the epoxy amanuensis with the hardener solution in a loving cup and stir vigorously. Apply the epoxy weld compound over the crack or damaged surface area with a putty knife, using pressure to shove it down into the crack or hole.

Pace 9

Employ stiff pressure to force the epoxy chemical compound inside the tank. Build up a several layers of epoxy weld over the damaged expanse, extending out to your chalk marks. Let the epoxy weld dry and cure co-ordinate to directions.

Stride 10

Accept your assistant help you place the tank back in the boat. Align the straps or brackets and insert the mounting bolts. Tighten the bolts with a socket. Reconnect the principal fuel intake hose and tighten the hose clench with a screwdriver.

Stride 11

Claw up the discharge fuel line and tighten the clamp with a screwdriver. Supercede the fuel vent hose and snap the clasp or tighten the clench with a screwdriver. Reconnect the fuel tank sensor wire, if yous accept removed one.

Refill your gas tank with the reclaimed gas from your containers. Cheque for leaks.

References

Tips

• Yous can repair the gas tank with HTS brazing rod, using a torch to oestrus up the aluminum surface until the rod flows and fills in the cracks. The surface preparation and treatment is identical to the cold epoxy weld procedure. You will apply flux to prep the metal before welding and a slag hammer to knock off bits of residue.

Things Y'all'll Need

• Siphon (manus pump)
• Gas cans
• Socket set
• Ratchet wrench
• Assistant
• Water source (high pressure)
• Air compressor
• Chalk
• Drill motor
• Cone bit
• Sandpaper (400 grit)
• Gloves
• Safety goggles
• Particle mask
• Acetone
• Marine weld epoxy
• Plastic cup
• Putty knife
• Screwdriver

Warnings

• No smoking or ignition sources should be allowed almost the boat or gas tank while performing this procedure. Even slight fumes can ignite, causing injury.

Writer Bio

Chris Stevenson has been writing since 1988. His automotive vocation has spanned more than than 35 years and he authored the automobile repair manual "Auto Repair Shams and Scams" in 1990. Stevenson holds a P.D.South Toyota document, ASE brake certification, Make clean Air Act certification and a California smog license.

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